Home / 7,118,015.20-10,652,139.60-6,520,818.40

Finding the Fourth Proportional to 7,118,015.20, 10,652,139.60 and 6,520,818.40

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Solution

The fourth proportional to 7,118,015.20, 10,652,139.60 and 6,520,818.40 is: 9,758,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,015.20 : 10,652,139.60 = 6,520,818.40 : x
  2. Step 2: Convert to fraction form
    7,118,015.20/10,652,139.60 = 6,520,818.40/x
  3. Step 3: Cross multiply
    7,118,015.20x = 10,652,139.60 × 6,520,818.40
  4. Step 4: Simplify right side
    7,118,015.20x = 69,460,667,903,048.64
  5. Step 5: Solve for x
    x = 69,460,667,903,048.64/7,118,015.20
  6. Step 6: Final answer
    x = 9,758,432.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.